TY  - JOUR
AU  - V. N. Laptinskii
TI  - Inequalities of the Wa{\.z}ewski inequality type for the system $x^{''}=A(t)x$
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 961
EP  - 964
VL  - 9
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_5_a23/
LA  - ru
ID  - DE_1973_9_5_a23
ER  -